You could try to warm the case in the oven at like 250 for a couple minuets because the aluminum will expand faster than the steel bearings and make it easier to remove, just warm it long enough that the steel bearings are not the same temp as the case. I do this when installing bearings, put bearings in the freezer and warm the case in the oven or toaster oven. If your wife gives you any grief let her know that your doing it for her.
It worked for me because I was working on her buggy.
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